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D31.91

D31.91Benign neoplasm of unspecified part of right eye

Billable / specific codeICD-10-CMright

D31.91 is a billable, specific ICD-10-CM code for benign neoplasm of unspecified part of right eye. It is valid for submission on a claim.

Risk adjustment

D31.91 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

D31.91 is named in 17 Medicare coverage policies 17 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56464Billing and Coding: Flow Cytometry
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)

Related codes at this level

Codes that share D31.9. If D31.91 is not quite right, the correct code is usually one of these.

Questions about D31.91

Is D31.91 a billable ICD-10-CM code?
Yes. D31.91 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D31.91 sit in the tabular list?
Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.